Dumping-car



N. BARNEY.

DUMPING GAR.

Patentd Aug. 6, 1 895.

(No Model.)

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fiZZne re.-- gay? W,

UNITED STATES PATE T OFFICE.

NATHAN BARNEY, OF BROOKLYN, NEW YORK.

DUMPING-CAR.-

SPECIFICATION forming part of Letters Patent No. 544,020, dated August 6, 1895.

Application filed April 1, 1895- Serial lilo. 5431 (N0 model-lv raising and lowering the trap-doors, which mechanism is mounted within the car-body.

A practical embodiment of my invention is represented in the accompanying drawings, in which- Figure 1 is a longitudinal vertical central section through a portion of a dumping-car, the trap-doors being shown closed in full lines and open in dotted lines. Fig. 2 is a transverse vertical central section through the car. Fig. 3 is a transverse vertical section through a car, showing a modified form of operating mechanism; and Fig. 4'is an enlarged view of the ratchet mechanism for holding the trap-doors closed. v

The class of car to which my invention is applied is that commonly known as the gondola type, in which the bottom of the car slopes downwardly toward the center to form a suitable hopper, the mouth of the hopper being closed by suitable trap-doors hinged so as to swing toward and away from each other to open and close communication through the bottom of the car.

The longitudinal side timbers of the framework of the car are denoted by A A, and the two center timbers are denoted by A A The hopper of the car is denoted by B, andit is provided with suitable swinging trappdoors b b, which are hinged to the bottom of the hopper on their opposite edges, their inner edges being adapted to swing up into close contact with each other.

The main shaft is designated by O and is mounted in suitable bearings c c on the side timbers A A. The ends of the shaft C project through the side of the car-body and are squared for the reception of a suitable crankhandle 0 thereon for rotating the said shaft.

The shaft 0 is further provided, at one or both ends,rwith a ratchetwheel 0 which is adapted to be engaged by a suitable pawl 0 whichpawl is adapted to lock the shaft 0 against rotation in' either direction when it engages the ratchet-wheel 0 The shaft 0 is further provided with a pinion c, which is located between the two center timbers A A Thecrank-shaft D is mounted in suitable bearings d, which bearings are secured to the center timbers A A The crank-arms of the crank-shaft D are denoted by d (1 In the present instance the crank-arm d is a gearwheel which meshes with the pinion 0 upon the shaft 0, so that as the shaft 0 is rotated the crank-shaft D'Will also be turned. The wrist-pin of the crank-shaft D is denoted by d and extends from the gear-wheel d to the other arm d of the crank-shaft. On this wristpin d I mount the upper ends of branch rods E E, the lower ends of the said rods being connected the one to the trap-door b and theother to the trap-door b, so that as the crankshaft D is turned the doors I) b will be opened or closed.

In the modified form shown in Fig. 3 the shaft 0 is provided with a second pinion c,

which intermeshes with the crank-arm 01 which in this instance is a gear-wheel corresponding to the gear-wheel d, which meshes with the pinion c on the said shaft C. It may be desirable to use this form for greater strength or positiveness in action,

A suitable box or casing F is. secured to the center timbers A A and protects the operating parts of the device. The bottom of this casing F is provided with a suitable opening f, through which the branch rods E E project.

In operation, supposing the trap-doors to be closed and it be desired to dump the load of earth, coal, or other material, the pawl c is released from its engagement with the ratchet-wheel c and the crank-handle c is turned, thereby causing the crank-shaft D, by means of its gear connection with the shaft 0, to turn, which will cause the doors I) b to swing apart allowing the material to pass therethrough. After the load has been dumped the crank-handle may be turned until the wrist-pin d assumes its highest point, when the doors b b will be closed. The pawl c is then caused to engage the ratchet-wheel 0 which engagement will lock the doors in their closed position.

By locating the door-operating mechanism in the center of the car I am enabled to use only one set of operating devices for each car instead of two sets, where the said mechanism is located upon the opposite sides of the car-body. This is a very important feature, as it allows of the doors being closed more positively and effectively.

It is obvious that slight changes might be resorted to in the form and arrangement of the several parts without departing from the spirit and scope of my invention. Hence I do not wish to limit myself strictly to the structure herein set forth; but

\Vhat I claim is-- 1. The combination with a car having a pair of swinging doors in its bottom, of a main shaft extending through the car body, a pinion carried by said shaft, a crank shaft, a gear wheel on the crank shaft intermeshing with the said pinion, and branch rods connecting the crank shaft with the doors, whereby the turning of the main shaft operates the doors, substantially as set forth.

2. The combination with a car having a pair of swinging doors in its bottom, of a car frame comprising side and center longitudinally extending timbers, a main shaft extending transversely across the car body and mounted in bearings on the said timbers, a pinion on said shaft, a crank shaft mounted in bearings on the center timbers, a gear Wheel thereon intermeshing with the pinion on the main shaft, and branch rods connecting the crank shaft with the swinging doors, whereby as the main shaft is rotated the doors are opened or closed, substantially as set forth.

NATHAN BARNEY. Witnesses:

FREDK. HAYNES, IRENE B. DECKER. 

